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This is a phone battery which is made of lithium-ion. This is a type of battery that can be recharged. When charging, the Lithium-ions move from the negative electrode to the positive electrode.
This is a SIM card. SIM stands for Subscriber Identity Module. This card is how the phone functions. Without it, it cannot work. They are made of embedded contacts and semiconductors.
This is the key pad for the phone. It has good ergonomics because it can fit fit any user and has a general one size fits all. Also the buttons have been equally spaced out. They are made of regular plastic. They are in the regular QWERTY format and they are held well together by a casing piece (see below this piece).
Mobile phone screens are mainly made of shatterproof glass and plastic. On top of each plastic film is a grid of electrical conductors. They can be fine metal wires or, in most cases a transparent conductor material. This is normally indium tin oxide (ITO).
Silver is a soft, white and precious metal used in mobile phone circuit boards. It is mainly, however, used as a by-product to create other materials used in the board such as: zinc, copper and nickel.
This is the component that creates a flash when it it hit with an electrical current. It is made of electroluminescent metal because it creates light when it is charged with electricity
This is the back cover of the phone and it is made of nylon or polyamide. It has good ergonomics because it is not suited to one user and the grip is effective and prevents it from slipping out of your hand.